Helotiales on attached branch of deciduous shrub (Crataegus?)

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Helotiales on attached branch of deciduous shrub (Crataegus?)

Filip Fuljer, 28-12-2024 18:20

Dear all,

today (28 Dec. 2024), I discovered some strange-looking lignicolous ascomycete on the attached branch of a deciduous shrub in a mixed forest (Fagus sylvatica and Pinus sylvestris) within the National Reserve Súlovské vrchy (NW Slovakia, calcareous bedrock, alt. 390 m).

Apos - turbinate, up to 0,4 mm wide
Spores - cylindric, 14,1-17,4 x 3-3,7 µm
Asci - 8 sp., IKI negative (used Baral´s reag.)
Paraphyses - with VBs, slightly inflated at top

Thank you in advance for your help!
Filip

Hans-Otto Baral, 28-12-2024 21:29

Re : Helotiales on attached branch of deciduous shrub (Crataegus?)

I would search in Pyrenopeziza.

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